Alley Gator offers little in the way of modes, difficulties, or options. In fact, there really aren't any at all. There are, however, 6 different environments across 25 levels, each with a target time of 1 minute or less to get through the tunnel. Along the way, you'll find various items strewn about, some of which are very helpful while others can mean the difference between passing a level or not. Each level has peppers for Alley to collect, though they don't appear to have much bearing on the outcome of the game. In fact, any collected peppers will not appear in replays of the level and do not factor into unlocking subsequent levels. Snagging stopwatches will become crucial to getting through the level under the target time.